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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

42°F

6°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.82 in (1009.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 8 Nov 1:52 am CST
Extended Forecast for

Anna IL

Dense Fog Advisory until November 8, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until November 8, 09:00am

    NOW until 9:00am Sat

    Dense Fog Advisory

  • Overnight

    Low: 46 °F

    Areas Dense
    Fog

  • Saturday

    Saturday: Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 69 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 38. Light and variable wind becoming northwest 12 to 17 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 43. Northwest wind 14 to 17 mph, with gusts as high as 26 mph.

    High: 43 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of flurries after midnight. Mostly clear, with a low around 25. North northwest wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 40. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 24 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 51. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, mostly clear, with a low around 46. Calm wind.
Saturday
Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
A slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 38. Light and variable wind becoming northwest 12 to 17 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 43. Northwest wind 14 to 17 mph, with gusts as high as 26 mph.
Sunday Night
A chance of flurries after midnight. Mostly clear, with a low around 25. North northwest wind 9 to 13 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 40. Northwest wind 7 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 24. Calm wind becoming south southwest around 6 mph after midnight.
Veterans Day
Mostly sunny, with a high near 51. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 41. Southwest wind 9 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 64. West wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 62. Calm wind becoming west around 5 mph.
Thursday Night
Partly cloudy, with a low around 45. Calm wind becoming south around 6 mph after midnight.
Friday
Mostly sunny, with a high near 66. South wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Anna IL
 37.48°N 89.24°W
Last Update:
2:26 am CST Nov 8, 2025
Forecast Valid:
2am CST Nov 8, 2025-6pm CST Nov 14, 2025
 
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Additional Resources

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Chance of Precipitation